16125520060121 has 2 divisors, whose sum is σ = 16125520060122. Its totient is φ = 16125520060120.

The previous prime is 16125520059991. The next prime is 16125520060267. The reversal of 16125520060121 is 12106002552161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15706993872025 + 418526188096 = 3963205^2 + 646936^2 .

It is a cyclic number.

It is not a de Polignac number, because 16125520060121 - 2⁴² = 11727473549017 is a prime.

It is not a weakly prime, because it can be changed into another prime (16125520060721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8062760030060 + 8062760030061.

It is an arithmetic number, because the mean of its divisors is an integer number (8062760030061).

Almost surely, 2^{16125520060121} is an apocalyptic number.

It is an amenable number.

16125520060121 is a deficient number, since it is larger than the sum of its proper divisors (1).

16125520060121 is an equidigital number, since it uses as much as digits as its factorization.

16125520060121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 16125520060121 in words is "sixteen trillion, one hundred twenty-five billion, five hundred twenty million, sixty thousand, one hundred twenty-one".